Optical Camera Lens

ABSTRACT

The present disclosure relates to field of optical lens, and discloses an optical camera lens, which, from the object side to the image side, successively includes: an aperture, first, second, third, fourth, fifth, sixth lenses; a curvature radius of an object-side surface of the second lens r 3 , a curvature radius of an image-side surface of the fourth lens r 8 , a total track length of the optical camera lens TTL, an image height IH, a curvature radius of an object-side surface of the fifth lens r 9 , a curvature radius of an image-side surface r 10 , a focal length of the integral optical camera lens f, focal lengths of the second, third, fourth lens f 2 , f 3 , f 4  satisfy the relational expressions: −0. 7&lt;r 3 /r 8 &lt;−0.5; TTL/IH&lt;1.35; 1.24&lt;(r 9 −r 10 )/(r 9 +r 10 )&lt;1.4; 1.5&lt;|(f 2 +f 4 )/f 3 |&lt;2.4; −3.5&lt;f 2 /f&lt;−2.5. The optical camera lens provided by the present disclosure can achieve low TTL, and meanwhile having the advantages of large aperture and low sensitivity.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens and,particularly, relates to an optical camera lens adapted for portableterminal devices such as smart cellphone, digital camera etc. and forcamera devices such as monitor, PC lens etc.

BACKGROUND

In recent years, as the booming development of the smart cellphone, theneed on miniaturized camera lens is increasing gradually. However, thephotosensitive component of a conventional camera lens is either acharge coupled device (Charge Coupled Device, CCD) or a complementarymetallic-oxide semiconductor sensor (Complementary Metal-OxideSemiconductor Sensor, CMOS Sensor). With the development ofsemiconductor processing technique, pixel size of the photosensitivecomponent is reduced. In addition, the electronic product at present isdeveloped to have better functions and a lighter and thinnerconfiguration. Therefore, a miniaturized camera lens with better imagingquality has already become the mainstream in the current market.

In order to obtain better imaging quality, a traditional lens carried ina cellphone camera usually adopts a three-lens or four-lens structure.As the development of technologies and increasing of user's diversifiedneeds, in the situation of the pixel area of the photosensitivecomponent being reduced, and the requirements of the system on imagingquality being increased constantly, a six-lens structure appears in thelens design gradually. However, although the common six-lens structurecan correct most optical aberration of an optical system, but cannotmeet the requirements of camera design on low total track length (TotalTrack Length, TTL), large aperture and low sensitivity at the same time.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a structural schematic diagram of an optical camera lensaccording to an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic diagram of axial chromatic aberration of anoptical camera lens shown in FIG. 1;

FIG. 3 is a schematic diagram of vertical axial chromatic aberration ofan optical camera lens shown in FIG. 1;

FIG. 4 is a schematic diagram of imaging surface bending and distortionof an optical camera lens shown in FIG. 1.

FIG. 5 is a structural schematic diagram of an optical camera lensaccording to another exemplary embodiment of the present disclosure;

FIG. 6 is a schematic diagram of axial chromatic aberration of anoptical camera lens shown in FIG. 5;

FIG. 7 is a schematic diagram of vertical axial chromatic aberration ofan optical camera lens shown in FIG. 5;

FIG. 8 is a schematic diagram of imaging surface bending and distortionof an optical camera lens shown in FIG. 5.

DESCRIPTION OF EMBODIMENTS

In order to make objectives, technical solutions and advantages of thepresent disclosure more clearly, embodiments of the present disclosurewill be illustrated in detail with reference to the accompanyingdrawings. Those skilled in the art should understand, in eachimplementing manner of the present disclosure, in order to make thereader understand the present disclosure, a plurality of technicaldetails have been proposed. However, the technical solutions protectedby the present disclosure shall also be implemented without thesetechnical details and the various modifications and variations presentedin the embodiments.

Referring to the figures, the present disclosure provides an opticalcamera lens. FIG. 1 shows an optical camera lens 10 according to anexemplary embodiment of the present disclosure, the optical camera lens10 includes six lenses. Specifically, the optical camera lens 10, froman object side to an image side, successively includes: an aperture St,a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, afifth lens L5, and a sixth lens L6. An optical component such as anoptical filter GF can be arranged between the sixth lens L6 and animaging surface Si.

The first lens L1 has positive refraction power, an object-side surfacethereof bulges outward to be a convex surface, the aperture St isarranged between the object and the first lens L1. The first lens L1having positive refraction power provides partial refraction powerrequired by the optical imaging system, which can facilitate reductionof the total track length of the optical camera lens 10. The second lensL2 has negative refraction power, in the present embodiment, animage-side surface of the second lens L2 is a concave surface. The thirdlens L3 has positive refraction power, in the present embodiment, anobject-side surface of the third lens L3 is a concave surface. Thefourth lens L4 has negative refraction power, in the present embodiment,an object-side surface of the fourth lens L4 is a concave surface, animage-side surface thereof is a convex surface. The fifth lens L5 haspositive refraction power, in the present embodiment, an image-sidesurface of the fifth lens L5 is a convex surface. The sixth lens L6 hasnegative refraction power, in the present embodiment, an object-sidesurface of the sixth lens L6 is a concave surface.

Herein, it is defined that a curvature radius of the object-side surfaceof the second lens is r3, a curvature radius of the image-side surfaceof the fourth lens is r8, a total track length of the optical cameralens is TTL, an image height of the optical camera lens is IH, acurvature radius of the object-side surface of the fifth lens is r9, acurvature radius of the image-side surface of the fifth lens is r10, afocal length of the integral optical camera lens is f, a focal length ofthe second lens is f2, a focal length of the third lens is f3, a focallength of the fourth lens is f4. The r3, r8, TTL, IH, r9, r10, f, f2, f3and f4 satisfy the following relational expressions: −0. 7<r3/r8<−0.5;TTL/IH<1.35; 1.24<(r9−r10)/r9+r10)<1.4; 1.5<|(f2+f4)/f3|<2.4;−3.5<f2/f<−2.5.

The relation between the total track length and the image height is setto be TTL/IH<1.35, which can achieve wide angle of the camera lens, andeffectively reduce the total track length of the system. The third lenshaving positive refraction power, the fourth lens having negativerefraction power can be distribute the positive refraction power of thefirst lens, so as to reduce sensitivity of the system. Besides, therefraction power/focal power of the sixth lens adopt the design solutionof positive-negative-positive-negative-positive-negative, and the focallengths of the second, third and fourth lens satisfy the relationalexpressions of 1.5<|(f2+f4)/f3|<2.4; −3.5<f2/f<−2.5, which can uniformlydistribute the focal power, so as to reduce sensitivity of the system.Besides, the design relation of the curvature radius is:−0.7<r3/r8<−0.5, 1.24<(r9−r10)/(r9+r10)<1.4, which can effectivelycorrect system spherical aberration, so as to guarantee imaging quality.

When the optical parameters of the optical camera lens 10 satisfies theabove relational expressions, the refraction power configuration of eachlens can be controlled/adjusted, which can correct aberration by usingthe lenses having different refraction power and focal lengths so as toguarantee imaging quality and, at the same time, can reduce the totaltrack length of the system so as to obtain low TTL, and can reducesensitivity of the integral camera lens, and have the advantage of largeaperture at the same time.

Specifically, in an embodiment of the present disclosure, the focallength fl of the first lens, the focal length f2 of the second lens, thefocal length f3 of the third lens, the focal length f4 of the fourthlens, the focal length f5 of the fifth lens and the focal length f6 ofthe sixth lens can be designed so as to satisfy the following relationalexpressions: 4<f1<5; −15<f2<−10; 10<f3<20; −18<f4<−12; −4<f5<−2;−3<f6<−2, unit: millimeter (mm). Such a design can shorten the totaltrack length (TLL) of the integral optical camera lens 10 as much aspossible, so as to maintain the characteristics of miniaturization.

In the optical camera lens 10 of the present disclosure, each lens canbe made of glass or plastic, if the lens is made of glass, which canincrease the freedom of the refraction power configuration of theoptical system of the present disclosure, if the lens is made ofplastic, which can reduce production cost effectively.

In an embodiment of the present disclosure, all lenses are plasticlenses. Further, in an embodiment of the present disclosure, arefractive index n1 of the first lens, a refractive index n2 of thesecond lens, a refractive index n3 of the third lens, a refractive indexn4 of the fourth lens, a refractive index n5 of the fifth lens and arefractive index n6 of the sixth lens can be designed to satisfy thefollowing relational expressions: 1.50<n1<1.55; 1.60<n2<1.70;1.50<n3<1.55; 1.60<n4<1.70; 1.50<n5<1.55; 1.50<n6<1.55. Such a design isadvantageous for an appropriate matching of the lenses with opticalplastic material, so that the optical camera lens 10 can obtain betterimaging quality.

It should be noted that, in an embodiment of the present disclosure, anabbe number v1 of the first lens, an abbe number v2 of the second lens,an abbe number v3 of the third lens, an abbe number v4 of the fourthlens, an abbe number v5 of the fifth lens and an abbe number v6 of thesixth lens can be designed to satisfy the following relationalexpressions: 40<v1<60; 15<v2<30; 40<v3<60; 15<v4<30; 40<v5<60; 40<v6<60.Such a design can suppress the phenomenon of optical chromaticaberration during imaging by the optical camera lens 10.

Besides, the surface of the lens can be an aspheric surface, theaspheric surface can be easily made into shapes other than sphericalsurface, so as to obtain more controlling varieties, which are used toeliminate aberration so as to reduce the number of the lens used,thereby can effectively reduce the total track length of the opticalcamera lens of the present disclosure. In an embodiment of the presentdisclosure, the object-side surface and the image-side surface of eachlens are all aspheric surfaces.

Optionally, an inflection point and/or a stationary point can beprovided on the object-side surface and/or the image-side surface of thelens, so as to satisfy the imaging needs on high quality, the specificimplementing solution is as follows.

The design data of the optical camera lens 10 according to Embodiment 1of the present disclosure is shown as follows.

Table 1 and Table 2 show data of the lens in the optical camera lens 10according to an exemplary embodiment of the present disclosure.

TABLE 1 Focal length (mm) f 4.234589 f1 4.541782 f2 −12.8574 f3 18.61419f4 −15.4287 f5 2.849814 f6 −2.9918 f12 6.342244

in which, meaning of each symbol is as follows.

f: focal length of the optical camera lens 10;

f1: focal length of the first lens L1;

f2: focal length of the second lens L2;

f3: focal length of the third lens L3;

f4: focal length of the fourth lens L4;

f5: focal length of the fifth lens L5;

f6: focal length of the sixth lens L6;

f12: combined focal length of the first lens L1 and the second lens L2.

TABLE 2 Curvature Thickness/ Sagittal Semi- Refractive Abbe radiusDistance height diameter index number (R) (mm) (d) (mm) (SAG) (mm) (SD)(mm) (nd) (vd) St St ∞ d0 = −0.305 L1 R1 1.77281 d1 = 0.612 SAG11 0.4171.147 nd1 1.5449 ν1 55.93 R2 5.48830 d2 = 0.075 SAG12 0.045 1.162 L2 R38.91773 d3 = 0.222 SAG21 0.073 1.160 nd2 1.6510 ν2 21.51 R4 4.27513 d4 =0.290 SAG22 0.242 1.132 L3 R5 8.11868 d5 = 0.347 SAG31 −0.027 1.167 nd31.5449 ν3 55.93 R6 40.06164 d6 = 0.187 SAG32 −0.147 1.240 L4 R7 −6.33307d7 = 0.241 SAG41 −0.241 1.262 nd4 1.6510 ν4 21.51 R8 −17.40000 d8 =0.287 SAG42 −0.224 1.518 L5 R9 15.68747 d9 = 0.828 SAG51 −0.288 1.933nd5 1.5449 ν5 55.93 R10 −1.69146 d10 = 0.386 SAG52 −0.845 2.264 L6 R11−5.290793 d11 = 0.431 SAG61 −0.778 2.644 nd6 1.5449 ν6 55.93 R122.424078 d12 = 0.664 SAG62 −0.723 3.020 GF R13 ∞ d13 = 0.210 ndg 1.5168νg 64.17 R14 ∞ d14 = 0.552

In which, R1, R2 are the object-side surface and the image-side surfaceof the first lens L1, respectively; R3, R4 are the object-side surfaceand the image-side surface of the second lens L2, respectively; R5, R6are the object-side surface and the image-side surface of the third lensL3, respectively; R7, R8 are the object-side surface and the image-sidesurface of the fourth lens L4, respectively; R9, R10 are the object-sidesurface and the image-side surface of the fifth lens L5, respectively;R11, R12 are the object-side surface and the image-side surface of thesixth lens L6, respectively; R13, R14 are the object-side surface andthe image-side surface of the optical filter GF, respectively. Meaningsof other symbols are as follows.

d0: axial distance from the aperture St to the object-side surface ofthe first lens L1;

d1: axial thickness of the first lens L1;

d2: axial distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: axial thickness of the second lens L2;

d4: axial distance from the image-side surface of the second lens L2 tothe object-side surface of the third lens L3;

d5: axial thickness of the third lens L3;

d6: axial distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: axial thickness of the fourth lens L4;

d8: axial distance from the image-side surface of the fourth lens L4 tothe object-side surface of the fifth lens L5;

d9: axial thickness of the fifth lens L5;

d10: axial distance from the image-side surface of the fifth lens L5 tothe object-side surface of the sixth lens L6;

d11: axial thickness of the sixth lens L6;

d12: axial distance from the image-side surface of the sixth lens L6 tothe object-side surface of the optical filter GF;

d13: axial thickness of the optical filter GF;

d14: axial distance from the image-side surface of the optical filter GFto the imaging surface;

SAG: sagittal height, vertical distance between topmost point andbottommost point of the lens;

SAG11: sagittal height of the surface R1 of the first lens L1;

SAG12: sagittal height of the surface R2 of the first lens L1;

SAG21: sagittal height of the surface R3 of the second lens L2;

SAG22: sagittal height of the surface R4 of the second lens L2;

SAG31: sagittal height of the surface R5 of the third lens L3;

SAG32: sagittal height of the surface R6 of the third lens L 3;

SAG41: sagittal height of the surface R7 of the fourth lens L4;

SAG42: sagittal height of the surface R8 of the fourth lens L4;

SAG51: sagittal height of the surface R9 of the fifth lens L5;

SAG52: sagittal height of the surface R10 of the fifth lens L5;

SAG61: sagittal height of the surface R11 of the sixth lens L6;

SAG62: sagittal height of the surface R12 of the sixth lens L6;

SD: semi-diameter parameter of the lens surface;

nd1: refractive index of the first lens L1;

nd2: refractive index of the second lens L2;

nd3: refractive index of the third lens L3;

nd4: refractive index of the fourth lens L4;

nd5: refractive index of the fifth lens L5;

nd6: refractive index of the sixth lens L6;

ndg: refractive index of the optical filter GF;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Besides, the distance from the image-side surface of the sixth lens L6to the imaging surface Si is 1.425 mm, the TTL of the integral opticalcamera lens 10 is 5.331 mm, the relative aperture FNo. is 2.0 mm.

Table 3 shows aspheric surface data of each lens in the optical cameralens 10 according to an exemplary embodiment of the present disclosure.

TABLE 3 Cone coefficient Aspheric surface coefficient k A4 A6 A8 A10 A12A14 A16 R1  1.4735E−01 0.00449467 −0.01175946 0.014645068 −0.014080590.005646024 0.000739769 −0.00194038 R2 −5.8526E+01 −0.030233190.025969766 −0.00167272 0.002804817 0.000992007 −0.00906813 0.001088185R3  3.5185E+01 −0.12664571 0.15844876 −0.06655137 0.027589202−0.008640118 −0.00716178 0.002636878 R4 −5.2843E+01 0.0085161270.046301496 0.017646796 −0.01649182 0.004814592 0.000619896 0.00269845R5  2.3208E+01 −0.07297221 −0.05223938 0.02504704 −0.01880354−0.000195384 0.006251836 0.007706782 R6 −4.4383E+03 −0.02079809−0.05691221 2.32611E−05 0.004842127 0.000885647 0.000181192 0.001303923R7  2.5293E+01 −0.04274624 −0.02849523 0.052798804 −0.023062040.004638488 0.003596045 −0.00188624 R8  8.1325E+01 −0.06757647−0.03004083 0.033854443 −4.3846E−05 −0.001885045 −0.00056547 0.000138705R9 −3.7473E+03 0.030094912 −0.0502202 0.018047586 −0.0011844−0.001854861 0.000704392  −7.596E−05 R10 −2.4838E+00 0.056671009−0.023145 0.007262627 −0.00150785 0.000256649 −4.2831E−05 3.08917E−06R11 −6.7543E+01 −0.09421001 0.026009024 −0.00203783 −3.4291E−05 1.97645E−06 2.21286E−07 3.91127E−08 R12 −1.4795E+01 −0.046595850.010497319 −0.00173895 0.000147694 −4.36162E−06 −5.6326E−08 1.07275E−09

Table 4 and Table 5 show the design data of inflection point andstationary point of each lens in the optical camera lens 10 according toan exemplary embodiment of the present disclosure. R1, R2 respectivelyrepresent the object-side surface and the image-side surface of thefirst lens L1; R3, R4 respectively represent the object-side surface andthe image-side surface of the second lens L2; R5, R6 respectivelyrepresent the object-side surface and the image-side surface of thethird lens L3; R7, R8 respectively represent the object-side surface andthe image-side surface of the fourth lens L4; R9, R10 respectivelyrepresent the object-side surface and the image-side surface of thefifth lens L5; R11, R12 respectively represent the object-side surfaceand the image-side surface of the sixth lens L6. The data correspondingto the ‘position of inflection point’ column is the vertical distancefrom the inflection point arranged by each lens surface to the opticalaxis of the optical camera lens 10. The data corresponding to the‘position of stationary point’ column is the vertical distance from thestationary point arranged by each lens surface to the optical axis ofthe optical camera lens 10.

TABLE 4 Number of Position 1 of Position 2 of Position 3 of inflectionthe inflection the inflection the inflection point point point point R11 1.125 R2 1 0.885 R3 3 0.355 0.505 1.075 R4 0 R5 2 0.355 0.985 R6 20.245 1.115 R7 1 1.235 R8 2 1.075 1.385 R9 3 0.565 1.695 1.875 R10 21.065 1.665 R11 3 1.485 2.195 2.615 R12 1 0.605

TABLE 5 Number of the Position 1 of Position 2 of stationary thestationary the stationary point point point R1 0 R2 1 1.055 R3 0 R4 0 R52 0.585 1.095 R6 1 0.395 R7 0 R8 0 R9 1 0.835 R10 0 R11 0 R12 1 1.275

FIG. 2 and FIG. 3 respectively show the schematic diagram of the axialchromatic aberration and ratio chromatic aberration of the opticalcamera lens 10 according to an exemplary embodiment after light with arespective wave length of 486 nm, 588 nm and 656 nm passing through theoptical camera lens 10. FIG. 4 shows the schematic diagram of theastigmatism field curvature and distortion of the optical camera lens 10according to an exemplary embodiment after light with a wave length of588 nm passing through the optical camera lens 10.

The following table 6 lists values with respect to each conditionalexpression in the present embodiment according to the above conditionalexpressions. Obviously, the optical camera system of the presentembodiment satisfies the above conditional expressions.

TABLE 6 Conditions Embodiment −0.7 < r3/r8 < −0.5 −0.513 TTL/IH < 1.351.274 1.24 < (r9 − r10)/(r9 + r10) < 1.4 1.242 1.5 < |(f2 + f4)/f3| <2.4 1.520 −3.5 < f2/f < −2.5 −3.036

In the present embodiment, the image height of full field of view of theoptical camera lens is 3.936 mm, the field of view angle in the diagonaldirection is 85.81° . The design data of the optical camera lens 20according to FIG. 5 and Embodiment 2 of the present disclosure is shownas follows.

Table 7 and Table 8 show data of the lens in the optical camera lens 20according to an exemplary embodiment of the present disclosure.

TABLE 7 Focal length (mm) f 4.179909 f1 4.192365 f2 −10.5733 f3 12.04495f4 −15.3937 f5 3.419095 f6 −2.87945 f12 6.1449

In which, meaning of each symbol is as follows.

f: focal length of the optical camera lens 10;

f1: focal length of the first lens L1;

f2: focal length of the second lens L2;

f3: focal length of the third lens L3;

f4: focal length of the fourth lens L4;

f5: focal length of the fifth lens L5;

f6: focal length of the sixth lens L6;

f12: combined focal length of the first lens L1 and the second lens L2.

TABLE 8 Curvature Thickness/ Sagittal Semi- Refractive Abbe radiusDistance height diameter index number (R) (mm) (d) (mm) (SAG) (mm) (SD)(mm) (nd) (νd) St St ∞ d0 = −0.327 L1 R1 1.74183 d1 = 0.574 SAG11 0.3641.069 nd1 1.5449 ν1 55.93 R2 6.47967 d2 = 0.086 SAG12 0.055 1.027 L2 R39.52346 d3 = 0.245 SAG21 0.044 1.024 nd2 1.6510 ν2 21.51 R4 3.95472 d4 =0.207 SAG22 0.130 1.014 L3 R5 7.05909 d5 = 0.305 SAG31 0.005 1.030 nd31.5449 ν3 55.93 R6 −92.07130 d6 = 0.284 SAG32 −0.049 1.067 L4 R7−5.96595 d7 = 0.287 SAG41 −0.220 1.149 nd4 1.6510 ν4 21.51 R8 −15.02329d8 = 0.291 SAG42 −0.259 1.453 L5 R9 14.06554 d9 = 0.952 SAG51 −0.2681.936 nd5 1.5449 ν5 55.93 R10 −2.09634 d10 = 0.398 SAG52 −0.911 2.310 L6R11 −4.5528 d11 = 0.650 SAG61 −0.905 2.622 nd6 1.5449 ν6 55.93 R122.514851 d12 = 0.507 SAG62 −0.772 3.279 GF R13 ∞ d13 = 0.210 ndg 1.5168νg 64.17 R14 ∞ d14 = 0.284

In which, R1, R2 are the object-side surface and the image-side surfaceof the first lens L1, respectively; R3, R4 are the object-side surfaceand the image-side surface of the second lens L2, respectively; R5, R6are the object-side surface and the image-side surface of the third lensL3, respectively; R7, R8 are the object-side surface and the image-sidesurface of the fourth lens L4, respectively; R9, R10 are the object-sidesurface and the image-side surface of the fifth lens L5, respectively;R11, R12 are the object-side surface and the image-side surface of thesixth lens L6, respectively; R13, R14 are the object-side surface andthe image-side surface of the optical filter GF, respectively. Meaningsof other symbols are as follows.

d0: axial distance from the aperture St to the object-side surface ofthe first lens L1;

d1: axial thickness of the first lens L1;

d2: axial distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: axial thickness of the second lens L2;

d4: axial distance from the image-side surface of the second lens L2 tothe object-side surface of the third lens L3;

d5: axial thickness of the third lens L3;

d6: axial distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: axial thickness of the fourth lens L4;

d8: axial distance from the image-side surface of the fourth lens L4 tothe object-side surface of the fifth lens L5;

d9: axial thickness of the fifth lens L5;

d10: axial distance from the image-side surface of the fifth lens L5 tothe object-side surface of the sixth lens L6;

d11: axial thickness of the sixth lens L6;

d12: axial distance from the image-side surface of the sixth lens L6 tothe object-side surface of the optical filter GF;

d13: axial thickness of the optical filter GF;

d14: axial distance from the image-side surface of the optical filter GFto the imaging surface;

SAG: sagittal height, vertical distance between topmost point andbottommost point of the lens;

SAG11: sagittal height of the surface R1 of the first lens L1;

SAG12: sagittal height of the surface R2 of the first lens L1;

SAG21: sagittal height of the surface R3 of the second lens L2;

SAG22: sagittal height of the surface R4 of the second lens L2;

SAG31: sagittal height of the surface R5 of the third lens L3;

SAG32: sagittal height of the surface R6 of the third lens L3;

SAG41: sagittal height of the surface R7 of the fourth lens L4;

SAG42: sagittal height of the surface R8 of the fourth lens L4;

SAG51: sagittal height of the surface R9 of the fifth lens L5;

SAG52: sagittal height of the surface R10 of the fifth lens L5;

SAG61: sagittal height of the surface R11 of the sixth lens L6;

SAG62: sagittal height of the surface R12 of the sixth lens L6;

SD: semi-diameter parameter of the lens surface;

nd1: refractive index of the first lens L1;

nd2: refractive index of the second lens L2;

nd3: refractive index of the third lens L3;

nd4: refractive index of the fourth lens L4;

nd5: refractive index of the fifth lens L5;

nd6: refractive index of the sixth lens L6;

ndg: refractive index of the optical filter GF;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Besides, the distance from the image-side surface of the sixth lens L6to the imaging surface Si is 1.001 mm, the TTL of the integral opticalcamera lens 10 is 5.281 mm, the relative aperture FNo. is 2.0 mm.

Table 9 shows aspheric surface data of each lens in the optical cameralens 20 according to an exemplary embodiment of the present disclosure.

TABLE 9 Cone coefficient Aspheric surface coefficient k A4 A6 A8 A10 A12A14 A16 R1  1.0612E−01 0.001645319 −0.01047004 0.014216146 −0.015283960.006176578 0.000759937 −0.0018186 R2 −7.8978E+01 −0.02887141 0.030552730.000200281 0.002037707 −0.001137399 −0.01011535 0.003116414 R3 4.2131E+01 −0.11669711 0.15596247 −0.07031961 0.027587788 −0.010192449−0.00799867 0.002090654 R4 −4.0919E+01 −0.00116558 0.0415168610.017221769 −0.01487404 0.001132413 −0.00874957 0.002734938 R5 2.5642E+01 −0.06934566 −0.04561725 0.032441577 −0.01075952 0.0086075850.010393811 −0.00463661 R6 −2.5134E+05 −0.02236365 −0.046532870.010131376 0.011375416 0.002781989  1.02E−05 0.001804147 R7  2.6093E+01−0.05495011 −0.03145123 0.053886686 −0.02034453 0.006765377 0.003939226−0.00398635 R8  1.0117E+02 −0.06678605 −0.02929206 0.033849869 −2.00E−04−0.001993095 −0.00061007 0.000144955 R9 −5.8605E+02 0.028057776−0.04893724 0.018033001 −0.00118836 −0.001873495 0.000700008 −7.46E−05 R10 −3.7654E+00 0.047399637 −0.02462349 0.007289678 −0.001467890.000267496 −4.21E−05 2.67E−06 R11 −3.9499E+01 −0.09276835 0.025868946−0.00206262 −3.64E−05  2.14E−06  2.69E−07 2.80E−08 R12 −1.0080E+01−0.04391073 0.010595885 −0.00174998 0.000146285 −4.50E−06 −5.43E−082.85E−09

Table 10 and Table 11 show the design data of inflection point andstationary point of each lens in the optical camera lens 20 according toEmbodiment 2 of the present disclosure. R1, R2 respectively representthe object-side surface and the image-side surface of the first lens L1;R3, R4 respectively represent the object-side surface and the image-sidesurface of the second lens L2; R5, R6 respectively represent theobject-side surface and the image-side surface of the third lens L3; R7,R8 respectively represent the object-side surface and the image-sidesurface of the fourth lens L4; R9, R10 respectively represent theobject-side surface and the image-side surface of the fifth lens L5;R11, R12 respectively represent the object-side surface and theimage-side surface of the sixth lens L6. The data corresponding to the‘position of inflection point’ column is the vertical distance from theinflection point disposed on each lens surface to the optical axis ofthe optical camera lens 20.

The data corresponding to the ‘position of stationary point’ column isthe vertical distance from the stationary point disposed on each lenssurface to the optical axis of the optical camera lens 20.

TABLE 10 Number of Position 1 of Position 2 of Position 3 of inflectionthe inflection the inflection the inflection point point point point R10 R2 1 0.925 R3 3 0.395 0.445 0.985 R4 0 R5 2 0.405 0.905 R6 1 0.935 R70 R8 2 1.125 1.265 R9 3 0.605 1.725 1.855 R10 0 R11 2 1.485 2.125 R12 10.685

TABLE 11 Number of the Position 1 of Position 2 of stationary thestationary the stationary point point point R1 0 R2 0 R3 0 R4 0 R5 20.685 1.015 R6 0 R7 0 R8 0 R9 1 0.915 R10 0 R11 0 R12 1 1.475

FIG. 6 and FIG. 7 respectively show the schematic diagram of the axialchromatic aberration and ratio chromatic aberration of the opticalcamera lens 20 according to Embodiment 2 after light with a respectivewave length of 486 nm, 588 nm and 656 nm passing through the opticalcamera lens 10. FIG. 8 shows the schematic diagram of the astigmatismfield curvature and distortion of the optical camera lens 20 accordingto an exemplary embodiment after light with a wave length of 588 nmpassing through the optical camera lens 10.

The following table 12 lists values with respect to each conditionalexpression in the present embodiment according to the above conditionalexpressions. Obviously, the optical camera system of the presentembodiment satisfies the above conditional expressions.

TABLE 12 Conditions Embodiment 2 −0.7 < r3/r8 < −0.5 −0.634 TTL/IH <1.35 1.262 1.24 < (r9 − r10)/(r9 + r10) < 1.4 1.350 1.5 < |(f2 + f4)/f3|< 2.4 2.156 −3.5 < f2/f < −2.5 −2.530

In the present embodiment, the image height of full field of view of theoptical camera lens is 3.936 mm, the field of view angle in the diagonaldirection is 86.56°

Person skilled in the art shall understand, the above implementingmanners are detailed embodiments of the present disclosure, however, inpractical application, various modifications may be made to the formsand details thereof, without departing from the spirit and scope of thepresent disclosure.

What is claimed is:
 1. An optical camera lens, from an object side to animage side, successively comprising: an aperture; a first lens havingpositive refraction power; a second lens having negative refractionpower; a third lens having positive refraction power; a fourth lenshaving negative refraction power; a fifth lens having positiverefraction power; and a sixth lens having negative refraction power;wherein a curvature radius of an object-side surface of the second lensis r3, a curvature radius of an image-side surface of the fourth lens isr8, a total track length of the optical camera lens is TTL, an imageheight of the optical camera lens is IH, a curvature radius of anobject-side surface of the fifth lens is r9, a curvature radius of animage-side surface of the fifth lens is r10, a focal length of theintegral optical camera lens is f, a focal length of the second lens isf2, a focal length of the third lens is f3, a focal length of the fourthlens is f4, which satisfy the following relational expressions:−0.7<r3/r8<−0.5;TTL/IH<1.35;1.24<(r9−r10)/(r9+r10)<1.4;1.5<|(f2+f4)/f3|<2.4;−3.5<f2/f<−2.5.
 2. The optical camera lens as described in claim 1,wherein a focal length f1 of the first lens, the focal length f2 of thesecond lens, the focal length f3 of the third lens, the focal length f4of the fourth lens, a focal length f5 of the fifth lens and a focallength f6 of the sixth lens satisfy following relational expressions,respectively:4<f1<5;−15<f2<−10;10<f3<20;−18f4<−12;−4<f5<−2;−3<f6<−2.
 3. The optical camera lens as described in claim 1, wherein arefractive index n1 of the first lens, a refractive index n2 of thesecond lens, a refractive index n3 of the third lens, a refractive indexn4 of the fourth lens, a refractive index n5 of the fifth lens and arefractive index n6 of the sixth lens satisfy following relationalexpressions, respectively:1.50<n1<1.55;1.60<n2<1.70;1.50<n3<1.55;1.60<n4<1.70;1.50<n5<1.55;1.50<n6<1.55;
 4. The optical camera lens as described in claim 1,wherein an abbe number v1 of the first lens, an abbe number v2 of thesecond lens, an abbe number v3 of the third lens, an abbe number v4 ofthe fourth lens, an abbe number v5 of the fifth lens and an abbe numberv6 of the sixth lens satisfy following relational expressions,respectively:40<vl<60;15<v2<30;40<v3<60;15<v4<30;40<v5<60;40<v6<60.